Re: [PATCH v2] dmaengine: rcar-dmac: don't use DMAC error interrupt

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi, again

> > > Current rcar-dmac is using DMAC error interrupt which will handle all
> > > channel's error. But in this design, error handling itself will be
> > > issue if user want to use virtualization, multi OS, etc.
> > > This patch removes current DMAC error interrupt handling, and handle it
> > > on each channel interrupt handler.
> > 
> > Just wondering, what's the usage pattern where this causes a problem?
> > Do you plan to export part of a SYS-DMAC instance to a guest?
> 
> "virtualization, multi OS" part is maybe misleading.
> It will be problem on non virtualization, too.
> 
> > How to maintain host/guest isolation?
> 
> This is another topic/issue, I think

I will post v3 patch, soon


Best regards
---
Kuninori Morimoto
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux